Free Interactive Tool
Solar Load & Inverter Sizing Calculator
Select your home appliances and quantities below. Our calculator applies standard NEPRA surge multipliers (+25% safety margin for motor startup surge) to determine your exact required inverter capacity, panel count, and roof space.
Standard Sizing Benchmarks
NEPRA & DISCO Compliant Sizing
- Motor Surge Factor
- +25% Margin Included
- Roof Area Ratio
- ~60 sq ft per 1 kWp
AppliancePower (Watts)QuantityLine Load
1.5 Ton Inverter AC
CoolingContinuous: ~900-1500W
1500 W
0 W
1.0 Ton Inverter AC
CoolingContinuous: ~700-1100W
1100 W
0 W
2.0 Ton Inverter AC
CoolingContinuous: ~1500-2200W
2200 W
0 W
DC/BLDC Inverter Ceiling Fan
LightingEnergy saver fan
35 W
0 W
Standard AC Ceiling Fan
LightingConventional fan
110 W
0 W
LED Bulb (12W)
LightingEnergy efficient LED
12 W
0 W
Tube Light (40W)
Lighting
40 W
0 W
Inverter Refrigerator
Kitchen & LaundryRuns 24/7
350 W
0 W
Conventional AC Refrigerator
Kitchen & Laundry
780 W
0 W
Deep Freezer
Kitchen & Laundry
350 W
0 W
Microwave Oven
Kitchen & LaundryPeak surge heating
1500 W
0 W
Automatic Washing Machine
Kitchen & Laundry
500 W
0 W
Electric Iron
Kitchen & Laundry
1000 W
0 W
0.5 HP Water Pump
Heavy Motors
375 W
0 W
1.0 HP Water Motor Pump
Heavy MotorsHigh startup surge
750 W
0 W
2.0 HP Water Motor Pump
Heavy Motors
1500 W
0 W
LED TV (42 to 55 inch)
Electronics
75 W
0 W
Desktop PC & Monitor
Electronics
250 W
0 W
Laptop Charger
Electronics
65 W
0 W
Wi-Fi Router & Modem
Electronics
15 W
0 W
Total Active Items0 appliances selected
Continuous Load0 Watts